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D3D12CreateDevice

関数
指定したアダプターと機能レベルでDirect3D12デバイスを作成する。
DLLd3d12.dll呼出規約winapi
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シグネチャ

// d3d12.dll
#include <windows.h>

HRESULT D3D12CreateDevice(
    IUnknown* pAdapter,   // optional
    D3D_FEATURE_LEVEL MinimumFeatureLevel,
    const GUID* riid,
    void** ppDevice   // optional
);

パラメーター

名前型方向説明
pAdapterIUnknown*inoptional使用するアダプター(IDXGIAdapter)。NULLで既定アダプターを使う。
MinimumFeatureLevelD3D_FEATURE_LEVELinデバイスが満たすべき最小機能レベルを示す列挙値。
riidGUID*in要求するデバイスインターフェイス(ID3D12Device等)のIID。
ppDevicevoid**outoptional生成されたデバイスインターフェイスを受け取る出力先。NULLで対応確認のみ。

戻り値の型: HRESULT

各言語での呼び出し定義

// d3d12.dll
#include <windows.h>

HRESULT D3D12CreateDevice(
    IUnknown* pAdapter,   // optional
    D3D_FEATURE_LEVEL MinimumFeatureLevel,
    const GUID* riid,
    void** ppDevice   // optional
);
[DllImport("d3d12.dll", ExactSpelling = true)]
static extern int D3D12CreateDevice(
    IntPtr pAdapter,   // IUnknown* optional
    int MinimumFeatureLevel,   // D3D_FEATURE_LEVEL
    ref Guid riid,   // GUID*
    IntPtr ppDevice   // void** optional, out
);
<DllImport("d3d12.dll", ExactSpelling:=True)>
Public Shared Function D3D12CreateDevice(
    pAdapter As IntPtr,   ' IUnknown* optional
    MinimumFeatureLevel As Integer,   ' D3D_FEATURE_LEVEL
    ByRef riid As Guid,   ' GUID*
    ppDevice As IntPtr   ' void** optional, out
) As Integer
End Function
' pAdapter : IUnknown* optional
' MinimumFeatureLevel : D3D_FEATURE_LEVEL
' riid : GUID*
' ppDevice : void** optional, out
Declare PtrSafe Function D3D12CreateDevice Lib "d3d12" ( _
    ByVal pAdapter As LongPtr, _
    ByVal MinimumFeatureLevel As Long, _
    ByVal riid As LongPtr, _
    ByVal ppDevice As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

D3D12CreateDevice = ctypes.windll.d3d12.D3D12CreateDevice
D3D12CreateDevice.restype = ctypes.c_int
D3D12CreateDevice.argtypes = [
    ctypes.c_void_p,  # pAdapter : IUnknown* optional
    ctypes.c_int,  # MinimumFeatureLevel : D3D_FEATURE_LEVEL
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # ppDevice : void** optional, out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('d3d12.dll')
D3D12CreateDevice = Fiddle::Function.new(
  lib['D3D12CreateDevice'],
  [
    Fiddle::TYPE_VOIDP,  # pAdapter : IUnknown* optional
    Fiddle::TYPE_INT,  # MinimumFeatureLevel : D3D_FEATURE_LEVEL
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # ppDevice : void** optional, out
  ],
  Fiddle::TYPE_INT)
#[link(name = "d3d12")]
extern "system" {
    fn D3D12CreateDevice(
        pAdapter: *mut core::ffi::c_void,  // IUnknown* optional
        MinimumFeatureLevel: i32,  // D3D_FEATURE_LEVEL
        riid: *const GUID,  // GUID*
        ppDevice: *mut *mut ()  // void** optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("d3d12.dll")]
public static extern int D3D12CreateDevice(IntPtr pAdapter, int MinimumFeatureLevel, ref Guid riid, IntPtr ppDevice);
"@
$api = Add-Type -MemberDefinition $sig -Name 'd3d12_D3D12CreateDevice' -Namespace Win32 -PassThru
# $api::D3D12CreateDevice(pAdapter, MinimumFeatureLevel, riid, ppDevice)
#uselib "d3d12.dll"
#func global D3D12CreateDevice "D3D12CreateDevice" sptr, sptr, sptr, sptr
; D3D12CreateDevice pAdapter, MinimumFeatureLevel, varptr(riid), ppDevice   ; 戻り値は stat
; pAdapter : IUnknown* optional -> "sptr"
; MinimumFeatureLevel : D3D_FEATURE_LEVEL -> "sptr"
; riid : GUID* -> "sptr"
; ppDevice : void** optional, out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。
出力引数: 
#uselib "d3d12.dll"
#cfunc global D3D12CreateDevice "D3D12CreateDevice" sptr, int, var, sptr
; res = D3D12CreateDevice(pAdapter, MinimumFeatureLevel, riid, ppDevice)
; pAdapter : IUnknown* optional -> "sptr"
; MinimumFeatureLevel : D3D_FEATURE_LEVEL -> "int"
; riid : GUID* -> "var"
; ppDevice : void** optional, out -> "sptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
出力引数: 
; HRESULT D3D12CreateDevice(IUnknown* pAdapter, D3D_FEATURE_LEVEL MinimumFeatureLevel, GUID* riid, void** ppDevice)
#uselib "d3d12.dll"
#cfunc global D3D12CreateDevice "D3D12CreateDevice" intptr, int, var, intptr
; res = D3D12CreateDevice(pAdapter, MinimumFeatureLevel, riid, ppDevice)
; pAdapter : IUnknown* optional -> "intptr"
; MinimumFeatureLevel : D3D_FEATURE_LEVEL -> "int"
; riid : GUID* -> "var"
; ppDevice : void** optional, out -> "intptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	d3d12 = windows.NewLazySystemDLL("d3d12.dll")
	procD3D12CreateDevice = d3d12.NewProc("D3D12CreateDevice")
)

// pAdapter (IUnknown* optional), MinimumFeatureLevel (D3D_FEATURE_LEVEL), riid (GUID*), ppDevice (void** optional, out)
r1, _, err := procD3D12CreateDevice.Call(
	uintptr(pAdapter),
	uintptr(MinimumFeatureLevel),
	uintptr(riid),
	uintptr(ppDevice),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function D3D12CreateDevice(
  pAdapter: Pointer;   // IUnknown* optional
  MinimumFeatureLevel: Integer;   // D3D_FEATURE_LEVEL
  riid: PGUID;   // GUID*
  ppDevice: Pointer   // void** optional, out
): Integer; stdcall;
  external 'd3d12.dll' name 'D3D12CreateDevice';
result := DllCall("d3d12\D3D12CreateDevice"
    , "Ptr", pAdapter   ; IUnknown* optional
    , "Int", MinimumFeatureLevel   ; D3D_FEATURE_LEVEL
    , "Ptr", riid   ; GUID*
    , "Ptr", ppDevice   ; void** optional, out
    , "Int")   ; return: HRESULT
●D3D12CreateDevice(pAdapter, MinimumFeatureLevel, riid, ppDevice) = DLL("d3d12.dll", "int D3D12CreateDevice(void*, int, void*, void*)")
# 呼び出し: D3D12CreateDevice(pAdapter, MinimumFeatureLevel, riid, ppDevice)
# pAdapter : IUnknown* optional -> "void*"
# MinimumFeatureLevel : D3D_FEATURE_LEVEL -> "int"
# riid : GUID* -> "void*"
# ppDevice : void** optional, out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。
const std = @import("std");

extern "d3d12" fn D3D12CreateDevice(
    pAdapter: ?*anyopaque, // IUnknown* optional
    MinimumFeatureLevel: i32, // D3D_FEATURE_LEVEL
    riid: [*c]GUID, // GUID*
    ppDevice: ?*anyopaque // void** optional, out
) callconv(std.os.windows.WINAPI) i32;
proc D3D12CreateDevice(
    pAdapter: pointer,  # IUnknown* optional
    MinimumFeatureLevel: int32,  # D3D_FEATURE_LEVEL
    riid: ptr GUID,  # GUID*
    ppDevice: pointer  # void** optional, out
): int32 {.importc: "D3D12CreateDevice", stdcall, dynlib: "d3d12.dll".}
pragma(lib, "d3d12");
extern(Windows)
int D3D12CreateDevice(
    void* pAdapter,   // IUnknown* optional
    int MinimumFeatureLevel,   // D3D_FEATURE_LEVEL
    GUID* riid,   // GUID*
    void** ppDevice   // void** optional, out
);
ccall((:D3D12CreateDevice, "d3d12.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Int32, Ptr{GUID}, Ptr{Cvoid}),
      pAdapter, MinimumFeatureLevel, riid, ppDevice)
# pAdapter : IUnknown* optional -> Ptr{Cvoid}
# MinimumFeatureLevel : D3D_FEATURE_LEVEL -> Int32
# riid : GUID* -> Ptr{GUID}
# ppDevice : void** optional, out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t D3D12CreateDevice(
    void* pAdapter,
    int32_t MinimumFeatureLevel,
    void* riid,
    void** ppDevice);
]]
local d3d12 = ffi.load("d3d12")
-- d3d12.D3D12CreateDevice(pAdapter, MinimumFeatureLevel, riid, ppDevice)
-- pAdapter : IUnknown* optional
-- MinimumFeatureLevel : D3D_FEATURE_LEVEL
-- riid : GUID*
-- ppDevice : void** optional, out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
const koffi = require('koffi');
const lib = koffi.load('d3d12.dll');
const D3D12CreateDevice = lib.func('__stdcall', 'D3D12CreateDevice', 'int32_t', ['void *', 'int32_t', 'void *', 'void *']);
// D3D12CreateDevice(pAdapter, MinimumFeatureLevel, riid, ppDevice)
// pAdapter : IUnknown* optional -> 'void *'
// MinimumFeatureLevel : D3D_FEATURE_LEVEL -> 'int32_t'
// riid : GUID* -> 'void *'
// ppDevice : void** optional, out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
const lib = Deno.dlopen("d3d12.dll", {
  D3D12CreateDevice: { parameters: ["pointer", "i32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.D3D12CreateDevice(pAdapter, MinimumFeatureLevel, riid, ppDevice)
// pAdapter : IUnknown* optional -> "pointer"
// MinimumFeatureLevel : D3D_FEATURE_LEVEL -> "i32"
// riid : GUID* -> "pointer"
// ppDevice : void** optional, out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。
<?php
$ffi = FFI::cdef(<<<C
int32_t D3D12CreateDevice(
    void* pAdapter,
    int32_t MinimumFeatureLevel,
    void* riid,
    void** ppDevice);
C, "d3d12.dll");
// $ffi->D3D12CreateDevice(pAdapter, MinimumFeatureLevel, riid, ppDevice);
// pAdapter : IUnknown* optional
// MinimumFeatureLevel : D3D_FEATURE_LEVEL
// riid : GUID*
// ppDevice : void** optional, out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。
import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface D3d12 extends StdCallLibrary {
    D3d12 INSTANCE = Native.load("d3d12", D3d12.class);
    int D3D12CreateDevice(
        Pointer pAdapter,   // IUnknown* optional
        int MinimumFeatureLevel,   // D3D_FEATURE_LEVEL
        Pointer riid,   // GUID*
        Pointer ppDevice   // void** optional, out
    );
}
@[Link("d3d12")]
lib Libd3d12
  fun D3D12CreateDevice = D3D12CreateDevice(
    pAdapter : Void*,   # IUnknown* optional
    MinimumFeatureLevel : Int32,   # D3D_FEATURE_LEVEL
    riid : GUID*,   # GUID*
    ppDevice : Void**   # void** optional, out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。
import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef D3D12CreateDeviceNative = Int32 Function(Pointer<Void>, Int32, Pointer<Void>, Pointer<Void>);
typedef D3D12CreateDeviceDart = int Function(Pointer<Void>, int, Pointer<Void>, Pointer<Void>);
final D3D12CreateDevice = DynamicLibrary.open('d3d12.dll')
    .lookupFunction<D3D12CreateDeviceNative, D3D12CreateDeviceDart>('D3D12CreateDevice');
// pAdapter : IUnknown* optional -> Pointer<Void>
// MinimumFeatureLevel : D3D_FEATURE_LEVEL -> Int32
// riid : GUID* -> Pointer<Void>
// ppDevice : void** optional, out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function D3D12CreateDevice(
  pAdapter: Pointer;   // IUnknown* optional
  MinimumFeatureLevel: Integer;   // D3D_FEATURE_LEVEL
  riid: PGUID;   // GUID*
  ppDevice: Pointer   // void** optional, out
): Integer; stdcall;
  external 'd3d12.dll' name 'D3D12CreateDevice';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "D3D12CreateDevice"
  c_D3D12CreateDevice :: Ptr () -> Int32 -> Ptr () -> Ptr () -> IO Int32
-- pAdapter : IUnknown* optional -> Ptr ()
-- MinimumFeatureLevel : D3D_FEATURE_LEVEL -> Int32
-- riid : GUID* -> Ptr ()
-- ppDevice : void** optional, out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
open Ctypes
open Foreign

let d3d12createdevice =
  foreign "D3D12CreateDevice"
    ((ptr void) @-> int32_t @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* pAdapter : IUnknown* optional -> (ptr void) *)
(* MinimumFeatureLevel : D3D_FEATURE_LEVEL -> int32_t *)
(* riid : GUID* -> (ptr void) *)
(* ppDevice : void** optional, out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)
(cffi:define-foreign-library d3d12 (t "d3d12.dll"))
(cffi:use-foreign-library d3d12)

(cffi:defcfun ("D3D12CreateDevice" d3-d12-create-device :convention :stdcall) :int32
  (p-adapter :pointer)   ; IUnknown* optional
  (minimum-feature-level :int32)   ; D3D_FEATURE_LEVEL
  (riid :pointer)   ; GUID*
  (pp-device :pointer))   ; void** optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $D3D12CreateDevice = Win32::API::More->new('d3d12',
    'int D3D12CreateDevice(LPVOID pAdapter, int MinimumFeatureLevel, LPVOID riid, LPVOID ppDevice)');
# my $ret = $D3D12CreateDevice->Call($pAdapter, $MinimumFeatureLevel, $riid, $ppDevice);
# pAdapter : IUnknown* optional -> LPVOID
# MinimumFeatureLevel : D3D_FEATURE_LEVEL -> int
# riid : GUID* -> LPVOID
# ppDevice : void** optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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